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Историческую версию Switch for Bluetooth audio devices - Switch B можно получить на Android
Переключайтесь между аудиоустройствами Bluetooth одним нажатием.
When using multiple Bluetooth audio devices, it is very difficult to set which device listens to music and which device receives calls.
This app was created to solve it.
Use your headset for calls and listen to music on your speakers. This app makes this very easy.
Now you can switch between Bluetooth audio devices with minimal taps.